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dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A. R.
dc.contributor.authorAdam, Wolfgang
dc.contributor.authorBaarmand, Marc M.
dc.contributor.authorBhopatkar, Vallary
dc.contributor.authorColafranceschi, Stefano
dc.contributor.authorHohlmann, Marcus
dc.contributor.authorNoonan, Daniel
dc.contributor.authorRoy, Tuhin S.
dc.contributor.authorYumiceva, Francisco X.
dc.identifier.citationSirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., . . . Woods, N. (2017). Observation of top quark production in proton-nucleus collisions. Physical Review Letters, 119(24) doi:10.1103/PhysRevLett.119.242001en_US
dc.descriptionElementary particles, High energy physics, Quantum theory, Center-of-mass energies, Data sample, Integrated luminosity, Nucleon-nucleon, Perturbative quantum chromodynamics, Proton-nucleus collisions, Standard deviation, Top quarks, Nuclear reactionsen_US
dc.description.abstractThe first observation of top quark production in proton-nucleus collisions is reported using proton-lead data collected by the CMS experiment at the CERN LHC at a nucleon-nucleon center-of-mass energy of sNN=8.16 TeV. The measurement is performed using events with exactly one isolated electron or muon candidate and at least four jets. The data sample corresponds to an integrated luminosity of 174 nb-1. The significance of the tt signal against the background-only hypothesis is above 5 standard deviations. The measured cross section is σtt=45±8 nb, consistent with predictions from perturbative quantum chromodynamics.en_US
dc.rights© 2017 CERN, for the CMS Collaborationen_US
dc.titleObservation of Top Quark Production in Proton-Nucleus Collisionsen_US

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© 2017 CERN, for the CMS Collaboration
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